Compression Ratio

[Nycko]

Hi, i have a question about the compression ratio that is showing in the tape.

Leave a picture

Why sometimes say 1.5:1 and other is 1.4:1 ?? 

I have set compression rate by hardware.

Thanks!

[theOnkar]

Hello,

The average file compresses at a 2:1 ratio when hardware compression is used. Higher and lower compression occur depending on the type of files being backed up.

Refer to : http://www.symantec.com/docs/TECH49521

[pkh]

The average file compresses at a 2:1 ratio when hardware compression is used.

There is no such thing as an average file compression ratio.  How much compression depends on the nature of the file.